Home / 112,402.81-155,114.03-61,414.44

Finding the Fourth Proportional to 112,402.81, 155,114.03 and 61,414.44

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Solution

The fourth proportional to 112,402.81, 155,114.03 and 61,414.44 is: 84,750.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,402.81 : 155,114.03 = 61,414.44 : x
  2. Step 2: Convert to fraction form
    112,402.81/155,114.03 = 61,414.44/x
  3. Step 3: Cross multiply
    112,402.81x = 155,114.03 × 61,414.44
  4. Step 4: Simplify right side
    112,402.81x = 9,526,241,288.59
  5. Step 5: Solve for x
    x = 9,526,241,288.59/112,402.81
  6. Step 6: Final answer
    x = 84,750.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.